CameraCapture (Function)

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Save in image format
Use conditions:
Required permissions

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CameraCapture (Function)

In french: CameraCapture

Saves the video currently transmitted by a "camera" as an image or a video sequence.

The formats in which the video is saved are:

an image in BMP format or a video sequence in AVI format.
an image in JPEG format or a video sequence in ASF format.
an image in JPEG format or a video sequence. The format and quality of captured video depend on the default setting of device and they can differ between the different devices.
an image in JPEG format or a video sequence. The format and quality of captured video depend on the default setting of device and they can differ between the different devices.

Notes:

To directly get a photo or a video by using the native video application found on the device, use CameraRunApp.
This function is equivalent to VideoCapture.

Example

// Save the video transmitted in the "CAM_Kitchen" control
// in the format of a 1-minute AVI ("C:\Temp\MyVideo.AVI")
ResSave = CameraCapture(CAM_Kitchen, "C:\Temp\MyVideo.AVI", viVideoCapture, 60)
IF ResSave = True THEN
Info("Video successfully saved")
ELSE
Error(ErrorInfo())
END

Syntax

<Result> = CameraCapture(<Camera control> , <Name of created file> [, <Type of capture> [, <Capture duration> [, <Number of images per second> [, <Display during capture>]]]])

<Result>: Boolean

True if the video was successfully saved,
False otherwise. To find out the error details, use ErrorInfo.

<Camera control>: Control name

Name of Camera control to use. There is no need to display the video in a Camera control in order to save it.

<Name of created file>: Character string (with quotes)

Name and full (or relative) path of file to create.
If an image is saved, a BMP file is created. If a video sequence is saved, an AVI file is created.
If an image is saved, a JPEG file is created. If a video sequence is saved, an ASF file is created.
If an image is saved, a JPEG file is created. If a video sequence is saved, the format and quality of captured video depend on the default setting of device and they can differ between the different devices.
Caution: No UNC path can be used.

<Type of capture>: Optional integer constant

Type of capture:
viPictureCapture
Capture an image in the format of a BMP file.

The capture is performed in a JPEG file.

The capture is performed in a JPEG file.
viVideoCapture
(Default value)
Capture a video sequence in the format of an AVI file.

The capture is performed in ASF format.

If a video sequence is saved, the format and quality of captured video depend on the default setting of device and they can differ between the different devices.

<Capture duration>: Optional integer or optional duration

Duration of capture (in seconds). If this parameter is set to 0 or if it is not specified, the capture will stop:
during the call to VideoStop.
when the specified disk is full.
Note: This parameter can correspond to:
an integer corresponding to the number of seconds,
a Duration variable,
Versions 23 and later
the direct indication of the duration ('1 s' for example).
New in version 23
the direct indication of the duration ('1 s' for example).
the direct indication of the duration ('1 s' for example).

<Number of images per second>: Optional integer

Number of images saved per second (15 by default). This parameter is taken into account only if <Type of capture> is equal to viVideoCapture.
This parameter is ignored.

<Display during capture>: Optional boolean

True (by default) if the video currently transmitted must be viewed in the specified Camera control,
False otherwise.
This parameter is ignored. The video saved is always viewed in the Camera control.

Remarks

Save in image format

Only the image displayed when running VideoCapture will be saved in BMP format. To save this image, you can also use:

dSaveImageBMP: the image will be saved in BMP format.
the function dSaveImageGIF: the image will be saved in GIF format.
dSaveImageJPEG: the image will be saved in JPEG format.

Use conditions:

To use this function, a "web camera" must be connected to the current computer.
This function requires a device that operates in Windows CE version 5.0 (or later) and that is equipped with a camera.
This function requires a device equipped with a camera. It can also be used during an execution in the Android emulator (for the capture of images only).
The camera setting can be identified and modified by VideoParameter and VideoListParameter.

Required permissions

The call to this function modifies the permissions required by the application.

Required permissions:

CAMERA: This permission allows the applications to access the camera.
RECORD_AUDIO: This permission allows the applications to record the sound.

Component : wd250obj.dll